The Bombardier Challenger 600 series is a family of business jets first produced by Canadair (as an independent company), and then produced from 1986 by Canadair as a division of Bombardier Aerospace. In service with the Canadian Forces, this aircraft was designated as the Bombardier CC-144 Challenger and used to transport the Governor General, government officials, foreign dignitaries and the Prime Minister of Canada.

Canadair CX-144A Challenger (Serial No. CX144612), low visibility grey, AETE-X. This was the second prototype, a CL-600-1A11, c/n 1002, allocated to the RCAF after finishing test programme. It was flown at the Aerospace Engineering and Test Establishment (AETE), CFB Cold Lake, Alberta, until its retirement in 1993, now preserved at CFB Winnipeg. It was designated CC-144 in service.